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Synthesis, Photoluminescence and Bio-Targeting Applications of Blue Graphene Quantum Dots
Wang, Jigang1; Zhou, Ji2; Zhou, Wenhua1; Shi, Jilong1; Ma, Lun3; Chen, Wei3; Wang, Yongsheng4; He, Dawei4; Fu, Ming4; Zhang, Yongna5
2016-04-01
摘要Chemical derived graphene oxide, an atomically thin sheet of graphite with two-dimensional construction, offers interesting physical, electronic, thermal, chemical, and mechanical properties that are currently being explored for advanced physics electronics, membranes, and composites. Herein, we study graphene quantum dots (GQD) with the blue photoluminescence under various parameters. The GQD samples were prepared at different temperatures, and the blue photoluminescence intensity of the solution improved radically as the heating temperatures increased. Concerning PL peak and intensity of the quantum dots, the results demonstrated dependence on time under heating, temperature of heating, and pH adjusted by the addition of sodium hydroxide. After hydrothermal synthesis routes, the functional groups of graphene oxide were altered the morphology showed the stacking configuration, and self-assembled structure of the graphene sheets with obvious wrinkles appeared at the edge structures. In addition, absorption, PL, and PLE spectra of the graphene quantum dots increase with different quantities of sodium hydroxide added. Finally, using GQD to target PNTIA cells was carried out successfully. High uptake efficiency and no cytotoxic effects indicate graphene quantum dots can be suitable for bio-targeting.
关键词Graphene Quantum Dots Hydrothermal Photoluminescence Bio-Targeting
DOI10.1166/jnn.2016.11817
发表期刊JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
ISSN1533-4880
卷号16期号:4页码:3457-3467
通讯作者Zhou, WH (reprint author), Beijing Inst Graph Commun, Key Lab Mat Construct & Anal, Beijing 102600, Peoples R China. ; Zhou, J (reprint author), Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 102600, Peoples R China. ; Chen, W (reprint author), Univ Texas Arlington, Dept Phys, Nanobio Phys Lab, 502 Yates, Arlington, TX 76019 USA. ; Wang, YS ; He, DW (reprint author), Beijing Jiao Tong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China.
收录类别SCI
WOS记录号WOS:000386122700054
语种英语